proc EnableTrafficItemHlt { trafficItem } {
    # Note: HLT returns Traffic Item keys like this:
    #       ::ixNet::OBJ-/traffic/trafficItem:7/configElement:1
    #       Need to parse out ::ixNet::OBJ-/traffic/trafficItem:7 only.
    #       
    regexp "(.*trafficItem:\[0-9]+)" $trafficItem - trafficItemId

    puts "\nEnableTrafficItemHlt: $trafficItem\n"
    set trafficItemStatus [::ixia::traffic_config -mode enable -stream_id $trafficItemId]
    if {[keylget trafficItemStatus status] != $::SUCCESS} {
	puts "\nError EnableTrafficItemHlt: $status\n"
	return 1
    }
    return 0
}